Question

state which of the following situations are possible and give an example of each of these-
1 a body moving with constant acceleration but with zero velocity
2 a body moving horizontally with an acceleration in vertical direction
3 a body moving with a constant velocity in an accelerated motion.

a motorcyclist drives from a to b with a uniform speed of 30km per hour and returns back with a speed of 20km per hour .find its average speed?

a) an object starting from rest travels 20m in first 2 sec and 160 in next 4s. what will be the velocity after 7 sec from the start?
b) mention some uses of a velocity time graph.

an electron moving with a velocity of 5into10raise to the power 4 ms enters into a uniform electric field and acquired a uniform acceleration of raaise to the power 4
ms-2 in the direction of its initial motion
a)calculate the time in which the electron would acquire a velocity double its initial velocity .
b) how much distance the electron would cover in this time.

a)a body can have zero average velocity but not zero average speed. justify giving an example.
b) a biker drives 700m north ,300m eas,400m north ,600m west,1200msouth,300m east,and finally 100m north. draw the path of motion of the biker .what distance did he cover ? what was his displacement?


plzzz
plzzz!!!!!!!
answer these questions

Answer 1

when there is projectile motion it moves horizontally with vertical acceleration

when there is uniform circular motion then dirn of velocity changes by accln not.

when there is rain velocity is constant but acceleration is there